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UNTTED STATES PATENT OFFICE.

MARTIN R. RUBLE, OF NElVARK, NEW JERSEY, ASSIGNOR TO THE RUBLE AMERICAN BLOVER AND INJECTOR COMPANY, OF SAME PLACE.

CENTRIFUGAL BLOWER.

SPECIFICATION forming part of Letters Patent No. 487,883, dated December 13, 1892.

Application tiled February 27, 1892. Serial No. 422,982. (No model.)

`To a/ZZ whom, t r11/ty concern:

Be it known that l, MARTIN R. RUBLE, a citizen of the United States, residingin Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Centrifugal Blowers; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference ,marked thereon, which form a part of this specification.

The object of this invention is to provide a blower simple and durable in construction and of great efficiency.

The invention, which is an improvement onY my application for Letters Patent for Im-- provements in centrifugal blowers and injectors, filed January 19, 1892, Serial No. 418,586, consists in the new and improved construction of the air or uid passages and the combination and arrangement of the varions parts, substantially as will be hereinafter more fully described, and finally embodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters of reference indicate correspondingv parts in the two views, Figure l is a front elevation of my improved blower, part of it being broken away; and Fig. 2 is a detail perspective view plainly illustrating the mode of construction of the air or fluid passages.

In the drawings, ay represents a shaft adapted to be revolved in bearings a', secured to the outer sides of the stationary chamber B, which latter consists of the side walls b b2 and the outer ring b with outlets g. The said side walls are provided with centrally-located inlets or opening h4 and with inwardly-extending flanges b, and are held together by bolts c or in any desired manner.

Within the chamber B and secured to shaft a is arranged a drum D, consisting of side plates d d2 and a series of triangular-shaped chambers E between and bearing against said side plates. Said chambers and side plates are securely fastened together by bolts e, which latter bear against the inside corners of said triangular chambers,as clearly shown in Fig. l. The side plates d d2 are also provided with inlets or openings d4 and spokes or arms d5, which latter serve as connection between drum D and shaft a. Each of the said triangular chambers E is formed of one continuous strip of metal of uniform width,

standing edgewise between the side plates dA d2, and consists of the two radial (or approximately so) sidesff2 and the outer or segment-v al side f.

The space between two adjoining chambers vE serves as the air or fluid passage, through withl the side plates d d2 and form the side walls for said pockets.

The operation of the within described blower is the same as the one described in my application, Serial No. 418,586, of January 19, 1892, whereby the air or iiuid, when the drum D is revolved, enters through openings b4 d4 into the air or Huid passages and is thrown from there by centrifugal force into 'chamber B. The pockets or elbows c2 when traveling through the air produce a vacuum Vand suction at theiroutlets, whereby the centrifugal force is assisted in conducting the air out of the passages .into the said chamber B.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1.` Ablower consisting of astationary chamber 'provided with centrally-located openings and a drum adapted to be revolved within said chamber, said drum being divided into a series of triangular-shaped chambers and radial passages, whereby by centrifugal force the air or Huid is conducted through said passages into the stationary chamber, substantially as described and set forth.

2. A blowerconsisting of a stationary cham- ICO ber provided with centrally-located openings, a drum adaptedv to be revolved within said chamber, and a series of metal strips arranged edgewise in said drum and adapted to form triangular-shaped chambers, and radial passages Within said drum, substantially as described and set forth.

3. In a blower, vthe combination, with the stationary chamber provided with centrallylocated openings, of a series of triangular chambers consisting of uniform Wide lnetal stripsgside plates d d2, holding said chambers together and adapted to form withV said chambers radially-extending air or fluid passages, curved extensions secured tov or made integral with the sides of said triangular ehamberaand projections secured-to or made l in g arranged and adapted to operate substantially as described, and for the purposes set forth.

In testimony vthat I claim the foregoing I have hereunto set my hand vthis 25th day of February, 1892. v

MARTIN R. RUBLE.

Witnesses:

ALFRED GARTNER, WM. D. BELL. 

